Steam abweratobv



L TAYLOR STFAM GENEHMH. Armcmlon um) MAR 2U* mno.

Patented Aug. 29, 1922.

4 SHEETS- SHEET l` l. TAYLUR.

STEAM GENERATOR. M'Pucnnon FILED MAR 20,1920.

Patented Aug. 29, 1922.

j. TAYLOR, STEAM GENERATUH. AFPLIQMIUN mw MM; 2o( w20,

.Patented Aug. 29, 1922.

4 SHEETS-SHEET 3.

ATTQRNEY Jv. TAYLOR. STEAM GENERATOR. APPLICATION man r11/m2o, 1920.

Patented Aug. 29, 1922.

4 SHEETS-SHEET 4.

UNITI? Sil? A'I ES OFFICE..

Jona Tanon, or roca-ranno, nimo.

sm" in enum 'n spasms@ officers wenn Patented Aug. 2'9, 1922.

Application illellJIal'ch 20,1920. Serial Eta-867,334v

Fo all whom it may concern.'

Be it known that I, JOHN Termin-a citizenofthewU'nited Statescf America, resid,

ingi Nau at Pocatello, in the county of Bannock State of Idaho, have'invented certain new and useful;i Improvements in Steam .(iienerators, of which the following is a specification.

This invention-relates to steam `generators andf it has forits' object the provision of an improved'device of this character constructed toburn line fuel suchV as powdered coal dust and to `generate steam at a minimum -ex ense andv with maximum eiiciency.I`

includes meanso'r hand firing` of the. boiler which means 'may be employed either in moderate weather, in emergencies, or for initiall getting up sullicient steam to vstart the tur ine in o eration.

The device automatically returning the water of condensaticn to the boiler.

Further objects and advantages of the invention will be set forth in the-detaiied description whichl follows.

In the accompanying drawing Figure 1 is a transverse vertical sectional view 01E-the boiler upon line 1-1 of Fig. 2 with .the various pipe connections vshown in elevation;

Fig. 2 is a longitudinal sectional view of the boiler upon line 2-2 of Fig. 1;

Fig. 3 is a transverse vertical section upon line 3-3 of Fig; 2;

Fig. 4 is a-transverse vertical section upon line 4-4'of Fig. 2.;

Fig. 5 is a diagrammatic front elevation of the generator; 'v

Fig. 6- is a transverse vertical section upon line 6-6 of Fig. 2; and

Fig. 'T is a view a1tly in elevation and partly in section i ustiating a water trap utilized for automaticall returning the water of condensation to t e-b'oiler.

Like numerals designate corresponding parts throughout the several views.

through an openingl atits bottom..

-i'thei' includ means for Referring to the drawing 5 designates a circular combustion chambery having alire bi'iclr lining 6. This-combustion chamber is partially embraced by a water :aclfetl 7 formed asa vpart of thewater spaeewithing acasting 8. Aiuel suppl pipe 9 is-divided into the branches 10 an 11. The-branch 10-V discharges tangentially at 12 into the combustionchmnber. The brenchll dis charges tangentially into .the combustionchamberat 13. An opening 14 formed'in the bottom of the combustion chamber serves to dischargejthe aehgcl'inker and slag into an ash chamber 15 formed withina block 16 underneath thecombustioncliamber. Tflie chamber 1'5 lin turn disch'ar es is opening alinea iv-itlian` openin 18`^that constitutesthe entrance to an a pit 19. It is to be noted that the .path of the incomV .fuel through brim'ch. 11 traverses the pat of the material that is falling from the opening 17 into theo ening 18. Slagand heavy clinker will be eavy enough to :fall into the chamber 19 but incandescent, pertially consumed cindei's whichare comparatively light would beV returned to the combustion chamber 5 and entirely consumed. 1 preferably provide a dumping late 20 beneath the opening 14 and the s ft 21V upon which this dumping plate is` mounted is extended to the exterior ofthe furnace and there provided witha counter Weight 22 (see F1 .2and 5 Pow ered coal .turn actuated Vby a steam driven turbine 26 that is supplied withlsteam from the steam space inthe boiler, indicated at 27, through :i ipe 28. The exhaust steam fromthe tnrliine 'is delivered through an exhaust pipe 29 into a separation tank 30. The powdered coal' is delivered from the'b-in 24 intothe fan casing.25 through apipe 31 in 4which a worm conveyer,31 is disposed. The shaft of this worin conveyer is indicated at 32 and is driven by a worm caring 33 from a shaft 34. This feedrrnec anism has been made the subject matter of a separate application VSerial Number 302,330- filed on the 6th day of June 1919, Patent No. 1,373,776 of April 5th 1921, and consequently needs no detailed description here.

From the foregoing description itwill ust or other line f uel is` delivered fromafbin or hop r 2A into the -cinders are returned to the combustion chamberes set forth until the are entirely -consumed while the slag anc clnker are closed `b thro delivered into the chamber 1.9. 'The products of combustion from the combustion chamber 5 are delivered, in the direction of arrows A, through an axial opening 35 formed in the" rear wall of said combustion chamber, into a cinder ltrap chamber 36 formed 1n the block of lire brick 37 and in the lire brick cap 38.' A. conduit 32 leads from the bottom of the chamber 36 to the interior of the block 16 so that such light Vcinders as fall therethrough will be caught by the blast'froin the branch 11 of the feed pipe While any heavier particles finding their Way thereinto will be discharged into the ash pit- 19' (see Fig. 2). From the cinder trap chamber 36 the products of combustion poss laterall through an opening 39 over-into the com ustion chamber 40 of the hand fired side of the furnace (see arrows b). This chamber is rovided with gratos 41 designed to hold ne fuel and consisting of a lurality of longitudinally extending grate ars of inverted L-shape in cross 'section that are disposed along the inclined faces 42 of triangular plates 43, said plates in turn being pivotally mounted at 44 upon brackets 45 so that they may be 'ven a slight rocking motion if desired. lhe combustion chamber 40 is provided with a lire brick cap 45 and is in communication l1 a natural draft opening 46 with a chain r 47 having aldoorway 48 that is door 4:9.

By re erring to F' 4 it will be seen that the sections 50 of t e furnace, of which there be es many as desired, consist of casting shaped to form steam spaces 5l, side water le 52 and 53, bottom water s aces 54 and glollow' water receivingi par itioni walls 55, one of these partition walls c onstituting one of the sides of the combustion chamber 40. These castings further comprise horizontal water legs 56 and connecting vertical water loge 57. The roducts of combustion pass, :is stated, throng the open ing- 39 into the combustion iamber. 40,

thence rearwardly and over the partition 'wall 55:, (see arrows c) the products of combustion ass thence rearwardly over and around t e various water legs of the sections 50 and between the water legs 59 of tions 60 of which there may be as many as desired. 'These sections comprise the steam spaces '671, side water l 62 und 63 and bottom water spaces 64. he water-spaces of the seveml'sectons are in communication through openings und these sections are tied together by longitudinall extending tie rods 66 as is common in unece oonstructions. The rear cover plate 67 of the Generator is preferably provided with a c een-out opening 68 that is closed by a door 69. A flue "ZO leads from this cover late throl h which the products of Vcoinustion fin ly escape. A bracket 71 supports the tanlr() and also sup orte the casing 72 of a valve hereinafter ascribed. A pipe 73 leads from the tank 30 to the valve casing while a pipe 74 leads from said valve casing to the water space within the boiler. A pipe 75 leads from the tank 30 to the valve casing 72. At the valve casing the pipe 75 has'oommunication with a port 76 und the pipe 78 has communication with a port 77. valve plug 78 is mounted to turn in the casing 74 and is provided with two longitudinally extending ports, 79 and 80. At the endof the valve lug 78 the port 80 communicates with the pipe o). which leads to a tank -82 While at the end of port 79 a pipe 83 is connectedto the valve plug and leads to the tank 82, it being understood that the tank 82, pipe 83, pipe 81 and valve plug 78 all move toofether. A counter weight 84- is connected liyan arm 85 with the valve plug 'f8 and moves with the other members named.

With the parte in the position indicated Vin Fig. 7 water of condensation may lion' from the tank 3i) through pipe 75, port 76, port 80, pipe 81 into the tank 82, any steam or air in sind tank being; driven out throu h pipe 83, port 79, port 7i and ipe 'I3` to t c upper part of the tank 30. l: en, b reason ol the accumulation of water o condensation, the tank 82 becomes sufficiently filled with water to overcome the counter weight S4, the tank 82 will descend to the dotted line position. This will move the plug of the valve T8 to bring port 80 into communication with pipe 74 and will bring the port 79 into communication with a port VS6 which is connected by u. branch S7 with' the steam pipe 28. Water may `then lion' from S2 through pipe 81, port 8U and pipe 74 to the boiler it being apparent that this movement of the water can take y lace against the pressure within the boiler ecanse steam pressure will be applied to the top of the tank -82 through pipe 87, port 8(5port 79 and pipe 83. This action will continue until the tank 82 is emptied enough to permit the counter weight 84 to return it to its former position.

The tank 30 is connected by a pipe 88 with a T 89 and 'this T is in turn connected with a brunch pipe 90 which leads to a system of radiators in a building to be heated. A pipe 91 connects the T 89 with the outlet of an ordinary automatic blowofl' valve 92. the said valve being connor-ted at 93 with the steam space of the boiler.A

If the pressure rises above a predeter mined'degree the automatic blow-olf valve will discharge into the pipe 91 and will consequently so increase the pressure in tank '30 and exhaust pipe 29 of the turbine as to either slow down said turbine or stop the same. The cutting oflof the supply of fuel to the combustion chamber 5 will so diminish the generation of steam as to permit the pressure to return to the desired point. As soon as the automatic valve' 92 closes and re lieves the back pressure upon the exhaust Y pipe 29 the turbine will start and the generator will resume operation. The time required for the turbine to resume its operation is very short and the fire brick within the combustion chamber 5 will remain incandescent for a considerable period of time and will immediately ignite the incoming fuel when the turbine resumes its operation. From the foregoing description itV will be seen that a simple, compact and highly ellicient organization of parts is herein provided for continuousl generating steam, for automatically control ing the degree of` pressure and for employing powdered coal dust with maximum efficiency.

It is to be understood that the invention is not limited to the precise construction set forth but that it includes within its purview whatever changes fairly come within either the terms or the spirit of the appended claims. v

Having described my invention, what I claim ist l. The combination with a 4furnace and boiler of a fuel feeding means o erated by boiler pressure and means operab e upon increase of boiler pressure beyond a predetermined point to admit boiler pressure to the exhaust line of the pressure operated fuel feedin Vineens to retard the same.

2. T e combination with a furnace and boiler-of a fuel, feeding means forthe furnace, a steam engine for operating the same, an automatic pressure operated valve opening upon the creation o excess pressure in the boiler and connections between the valve and the exhaust line of the engine through which back pressure is put upon the exhaust line to slow down the en .'ne when the pressure in theboiler exce s a predetermined degree.

3. The combination with a'furnace and boiler of a fuel feeding ipe for the furnace, a fan forcr'eating a b ast in said pipe, a source of fuel supply delivering to said fan, an engine operated by steam from said boiler for driving said fan to feed fuel into said pipe, a blow-olf valve automatically operable upon the creation of excess pressure in the boiler and connections between said blowofl` valve and the exhaust line of the engine1 through which bac-k pressure is created in the exhaust line to retard the engine when 'the pressure in the boiler exceeds a predetermined degree.

4. In a device of the character described the combination with a substantially circular combustion chamber, of a fuel feeding pipe having two branches, one of said branches discharging directly into said combustion chamber and the other of said branches also dischzfirging into said combustion chamber at a point spaced from the point of discharge of the first named branch and farther about the circumference of said chamber, a block having a chamber therein located beneath the combustion chamber, said chamber of the block being in communication with the bottom ot' the combustion chamber, an ash pit below the chamber of the block there being a passageway connecting said ash pit with saidychamber the last named branch pipe leading to and from the opposite sides of said passageway so that the blast through said last named pipe is caused to traverse said passageway at right angles thereto, whereby ash and cinders fallin from the combustion chamber through said chamber oi the block into the ash pit are subjected to the action of the blast. passing through said last named branch pipe.

.'i. ln a device of the character described the combination of a circular fine fuel burning combustion chamber and water spaces some of which constitute a water jacket for said combustion chamber, a second combustion chamber lying at one side of the first named combustion chamber, and provided with gratos for coal or Wood`r and a. (vinder trap in the rear ol' the first named combustion chamber and communicating with the last named combustion chamber there being a port formed in the rear wall ol the first named combustion chamber and communicatino with said einde;` trap.

6, he combination with a circular combustion chamber having a port for the escape of the products of combustion formed axially in its rear wall, of a fuel supply pipe comprising two branches each of which discharges tangentially into said combustion chamber, an. outlet from the combustion chamber between the entrance :oints of the said two branches thereinto, a liollow block below said outlet, an ash pit disposed belo'w said block, there being a passage connecting the interior of the block with the'ash pit, the last named passage being traversed by the blast through one of the branches of the fuel supply pipo.

ln testimony whereof I atlix my signature in the presence of two witnesses.

J 0 HN TA YLOR.

Witnesses J. W. BLACKBURN, M iommsr. Bruneau.. 

